The film follows a group of criminals and corrupt cops who find themselves in serious trouble. The Russian mafia is blackmailing them, and the only way to deal with them is to perform what is believed to be an extremely challenging heist. Impossible as it may seem, however, they eventually hatch a plan: on one side of town, half of the crew will plan the murder of a rookie cop named Chris Allen (Casey Affleck), and while the rest of the force is distracted by a 999 call ("officer down"), the other half of the corrupt cops will pull off the job.